1、 One line of code 1--100 The sum of the
utilize sum() Summation of functions
2、 How to modify global variables inside a function
utilize global Modify global variables
3、 List 5 individual python Standard library
os： Provides a number of functions associated with the operating system
sys: Usually used for command line arguments
re: Regular matching
math: Mathematical operations
datetime: Processing date time
4、 Dictionary how to delete key and merge two dictionaries
del and update Method
5、 go on talking python Of GIL
GIL yes python The global interpreter lock , If there are multiple threads running in the same process , A thread is running python When it comes to programming, it takes over python Interpreter （ Add a lock, that is GIL）, Make other threads in the process unable to run , After the thread has finished running, other threads can run . If a thread runs into time-consuming operations , The interpreter lock is released , Make other threads run . So in multithreading , Threads still run in sequence , Not at the same time .
Multi process, because each process can be allocated resources by the system , It means that each process has a python Interpreter , So multiple processes can run at the same time , The disadvantage is that the process system costs a lot of resources
6、python How to realize list de duplication
Let's go through the set first , In transit list
7、fun(*args,**kwargs) Medium *args,**kwargs What do you mean ？
8、python2 and python3 Of range（100） The difference between
python2 Returns a list of ,python3 Return iterator , To save memory
9、 In a word, explain what kind of language can be used with decorators ?
A language in which functions can be passed as arguments , You can use decorators
10、python What are the built-in data types
integer --int
Boolean type --bool
character string --str
list --list
Tuples --tuple
Dictionaries --dict
Introduction to big data development
database MySQL：2022 Dark horse programmer latest MySQL Knowledge elaboration +mysql Practical cases _ Zero basis mysql A complete set of tutorials from getting started to advanced database
Big data core foundation Hadoop：2022 The latest dark horse programmer big data Hadoop Getting started video tutorial , The most suitable big data for zero foundation self-study Hadoop course
Hive Digital warehouse technology ： Dark horse programmer big data project practical tutorial _ Big data enterprise offline data warehouse , Online education project practice （Hive Complete process of data warehouse project ）
spark3.2 course ： Black horse programmer Spark A full video tutorial ,4 God spark3.2 Quick start to mastery , The first set in the whole network is based on Python Linguistic spark course
Complete self-study roadmap ：2022Python+ Big data learning roadmap
2022 Popular course of artificial intelligence development in
Python data mining ： Black horse programmer Python course ,4 Get started Python data mining , Elaborate on the system + Practical cases
3 Day play machine learning ： Black horse programmer 3 Get started python machine learning
NLP Natural language processing technology ：Python Artificial intelligence 20 Play for an hour NLP natural language processing 【 Black horse programmer 】
AI-OpenCV The image processing ： Dark horse programmer AI tutorial _10 Learn image processing when you are young OpenCV Introductory tutorial
